**Xiang-Gen Xia (PI), Robust Modulo Remaindering and Applications in Radar and Sensor Signal Processing, the Air Force Office of Scientific Research (AFOSR), 2012 - 2014.**

**Xiang-Gen Xia (Co-PI), Anomaly Pattern Analysis, Michelin , PI: Javier Garcia-Frias; Co-PI: Gonzalo Arce, 2011-2014.**

**Xiang-Gen Xia (PI), ITR Collaborative Research: Explicit Codes for Efficient Operation of Wireless Networks, the National Science Foundation (NSF) , Other PIs for this project: Kumar and Zhang (leading PIs); Hammons, 2010-2013.**

**Xiang-Gen Xia (Co-PI),**Mitigation of Radar Clutter Using Algorithmic Techniques, MDA Phase II, 2009-2011.

**Xiang-Gen Xia (PI),**Space-time codes for interference alignment, Huawei Technologies, 2010-2011.

**Xiang-Gen Xia (PI), Low complexity receiver based space-time codes for broadband wireless communications, the Air Force Office of Scientific Research (AFOSR), 2008 -- 2010.**

**Xiang-Gen Xia (Co-PI),**Inverse scattering theory for MIMO radar with applications in wall penetration, the Army Research Office, PI is Fengshan Liu at the Delaware State University, 2007 -- 2010.

**Xiang-Gen Xia (PI),**Advanced Coding and Modulation for MIMO-OFDM Systems, Huawei Technologies, 2008.

**Xiang-Gen Xia (Co-PI),**A High Performance Framework for Radar Clutter Suppression, Target Tracking and Identification, MDA, 2008.

**Xiang-Gen Xia (PI),**Space-Time Coding Using Algebraic Number Theory for Broadband Wireless Communications, Sponsored by the Air Force Office of Scientific Research (AFOSR) , 2005 - 2008

**Xiang-Gen Xia (PI),**ITR Collaborative Research: Achieving the Rate Diversity Tradeoff in Space-Time Codes, Sponsored by the National Science Foundation (NSF), 2003-2008. Other PIs for this project: Kumar and Zhang (leading PIs); Hammons.

**Xiang-Gen Xia (PI),**Space-Time Code Designs for Broadband Wireless Communications, Sponsored by the Air Force Office of Scientific Research (AFOSR) , 2002--2005.

**Xiang-Gen Xia (PI),**Space-Time Code Designs, Sponsored by the Collaborative Technology Alliances from Army Research Labs. , 2001--2004.

**Xiang-Gen Xia (PI),**Modulated Coding for Frequency-Selective Multipath Fading Channels, Sponsored by the National Science Foundation (NSF), 2001-2006.

**Xiang-Gen Xia (PI),**Adaptive discrete chirp-Fourier transform with applications in over-the-horizon radar, Sponsored by the Office of Naval Research (ONR), 2000-2003.

**Xiang-Gen Xia (PI),**Noise analysis and reduction for joint time-frequency/time-scale transformations with applications in ISAR/SAR imaging, Sponsored by the Office of Naval Research (ONR) Young Investigator Program (YIP) , 1998--2001.

**Xiang-Gen Xia (PI),**Modulated coding: a new communication system, Sponsored by the University of Delaware Research Foundation, 1998--2001.

**Xiang-Gen Xia (PI),**Modulated coding for digital communication systems under ISI/Multipath fading and jamming, Sponsored by the Air Force Office of Scientific Research (AFOSR) , 1998--2001.

**Xiang-Gen Xia (PI),**Two dimensional Malvar wavelets and their applications in jamming resistance communication and navigation, Sponsored by the Air Force Office of Scientific Research (AFOSR) , 1997--1997.

**Xiang-Gen Xia (PI),**Intersymbol/interchannel interference cancellation using multirate filterbanks, Sponsored by the National Science Foundation CAREER Program , 1997--2003.